Unit 7B Review

The table shows pairs of values for a linear function. A different function's equation y = -16x +10. Which of the following statements is TRUE?

• Both functions have a positive slope.

• The functions are both proportional.

• The y-intercept of both functions is 0.

• Both functions have a negative slope.

Tags

CCSS.8.F.A.2

CCSS.HSF.IF.C.9

The slope of a line is 12 and the y-intercept is (0, 45). What is the equation of the line in slope-intercept form? *y=mx+b*

(a)  

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

Emma wants to go bowling. The bowling alley charges $10 per game and a one-time charge of $2 for bowling shoes. y = 10x + 2

y is the total cost of bowling

x is the number of games bowled

Based on the information, which statement is TRUE?

• The total cost will increase by $2 for every game bowled.

• The total cost will increase by $10 for every 2 games bowled.

• The total cost will increase by $10 for every game bowled.

Tags

CCSS.HSF.LE.B.5

Devin found this table in is math textbook. What are the y-intercept and slope of the line represented by this data?

(a)  

Tags

CCSS.8.EE.B.5

Create and Equations: To ship a package costs $7.50 plus $5 per pound. What is the total cost for a package that weighs x pounds?

(a)  

Tags

CCSS.6.EE.C.9

Elvin compared the graphs of two functions.

The first function was f(x) = 3x + 4.

The second function fits the values in the table.

• - 6

• -3

• 6

• 3

Tags

CCSS.8.F.A.2

CCSS.HSF.IF.C.9

Camilla is saving up for a plane ticket to California. She already has $50 saved and intends to save $30 each week. Camilla found a plane ticket that costs $440. After how many weeks will Camilla have saved enough money to buy her plane ticket to California?

• 13

• 12

• 10

• 15

Denni and Melissa get summer jobs. Holli makes $9.50 per hour. The table shows Melissa’s pay.

(a)  

Tags

CCSS.6.RP.A.3A

Which equation models the relationship for Melissa’s pay shown in the table?

• y = 7.25x

• y = 7.25x +10

• y = 8.75x

• y = 8.75x +1

Tags

CCSS.HSF-BF.A.1A

Which set of ordered pairs would define a line with a negative slope?

• (-3, -8) and (5, 6)

• (8, 9) and (4, 4)

• (3, 6) and (5, 1)

Tags

CCSS.8.EE.B.5